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Posted to bugs@httpd.apache.org by bu...@apache.org on 2008/11/12 14:19:49 UTC

DO NOT REPLY [Bug 46195] New: ProxyPass fails with literal IPv6 address

https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

           Summary: ProxyPass fails with literal IPv6 address
           Product: Apache httpd-2
           Version: 2.2.8
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mod_proxy
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: chaz@chaz6.com


When using ProxyPass with a URL containing a literal IPv6 address, for example
'ProxyPass /google/ http://[2001:4860:0:1001::68]/', the web server returns a
400 Bad Request.

A workaround is to add a dummy entry to /etc/hosts, for example,
'2001:4860:0:1001::68 dummy-google-ipv6', and adding 'ProxyPass /google/
http://dummy-google-ipv6/' to the configuration.


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DO NOT REPLY [Bug 46195] ProxyPass fails with literal IPv6 address

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

--- Comment #3 from Nick Kew <ni...@webthing.com> 2010-11-17 14:54:37 EST ---
Diagnosis for the record: apr_sockaddr_info_get is being passed flags of 0 in
proxy_util.c at line 2134 of proxy_util.c (2.2.17).  Passing it
APR_IPV6_ADDR_OK fixes it.

Don't have time right now to figure out whether this is a correct or a
coincidental fix, and apply it.

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DO NOT REPLY [Bug 46195] ProxyPass fails with literal IPv6 address

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

--- Comment #4 from Stefan Fritsch <sf...@sfritsch.de> 2012-01-08 18:01:25 UTC ---
(In reply to comment #3)
> Diagnosis for the record: apr_sockaddr_info_get is being passed flags of 0 in
> proxy_util.c at line 2134 of proxy_util.c (2.2.17).  Passing it
> APR_IPV6_ADDR_OK fixes it.

It passes family APR_UNSPEC, i.e. APR_IPV6_ADDR_OK should only change which
addresses are returned first, not if they are returned at all. If
apr_sockaddr_info_get() doesn't return v6 addresses without APR_IPV6_ADDR_OK
that would be a bug in apr.

On the other hand, apr passes AI_ADDRCONFIG to getaddrinfo() in this case, so
glibc's rather broken algorithm for checking IPv6 support could also be at
fault (at least on Linux).

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DO NOT REPLY [Bug 46195] ProxyPass fails with literal IPv6 address

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

info@coeus.si changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |info@coeus.si

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DO NOT REPLY [Bug 46195] ProxyPass fails with literal IPv6 address

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

Nick Kew <ni...@webthing.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE

--- Comment #1 from Nick Kew <ni...@webthing.com> 2010-02-12 08:08:50 UTC ---


*** This bug has been marked as a duplicate of bug 47177 ***

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DO NOT REPLY [Bug 46195] ProxyPass fails with literal IPv6 address

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

Craig <ca...@integralblue.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |candrews@integralblue.com

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DO NOT REPLY [Bug 46195] ProxyPass fails with literal IPv6 address

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46195

info@coeus.si changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |

--- Comment #2 from info@coeus.si 2010-11-17 13:46:56 EST ---
When trying to configure the following (2.2.17 on Win Server 2008):
   ProxyPass / http://[::1]:8020/
   ProxyPassReverse / http://[::1]:8020/

it produces the following error:
[Wed Nov 17 07:34:51 2010] [error] [client 95.87.153.77] proxy: DNS lookup
failure for: [::1]]:802 returned by /

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